Resin article

Patent metadata

Field	Value
Publication number	US-9296178-B2
Application number	US-201314085102-A
Country	US
Kind code	B2
Filing date	Nov 20, 2013
Priority date	May 28, 2010
Publication date	Mar 29, 2016
Grant date	Mar 29, 2016

Abstract

Provided is a resin article having a layer-separated structure. The resin article may include a first resin layer and a second resin layer formed on the first resin layer. Also, the component of the first resin layer is detected on a surface of the second resin layer by infrared spectrometer. The resin article may have improved mechanical and surface characteristics. Further, since coating or plating is not required for manufacturing a resin article, a manufacturing time and/or cost can be reduced, and productivity can be increased.

First claim

What is claimed is:

1. A resin article, comprising:
a first resin layer including a first resin; and
a second resin layer including a second resin having a molecular weight distribution of 1 to 2.5 formed on the first resin layer,
wherein a component of the first resin layer is detected on the top surface of the second resin layer by infrared spectrometer, and
wherein the resin article has a layer-separated structure,
wherein the first resin layer includes at least one selected from the group consisting of a styrene-based resin, a polyolefin-based resin, a thermoplastic elastomer, a polyoxyalkylene-based resin, a polyester-based resin, a polyvinyl chloride-based resin, a polycarbonate-based resin, a polyphenylene sulfide-based resin, a vinyl alcohol-based resin, an acrylate-based resin, engineering plastics and a copolymer thereof, and
wherein the second resin layer includes at least one selected from the group consisting of a (meth)acrylate-based resin, an epoxy-based resin, an oxetane-based resin, an isocyanate-based resin, a silicon-based resin, a fluorine-based resin and a copolymer thereof, wherein the first resin layer and the second resin layer has a difference in surface energy at 25° C. of 0.1 to 35 mN/m, and wherein the first resin layer and the second resin layer have a difference in solubility parameter at 25° C. of 0.001 to 10.0 (J/cm 3 ) 1/2 .

2. The resin article according to claim 1 , further comprises an interface layer including a first resin and a second resin and formed between the first resin layer and the second resin layer.

3. The resin article according to claim 2 , wherein the interface layer has a thickness of 0.01 to 95% based on the total thickness of the second resin layer and the interface layer.

4. The resin article according to claim 1 , wherein the second resin layer has a thickness of 0.01 to 60% based on the total thickness of the resin article.

5. The resin article according to claim 1 , wherein the second resin has a weight average molecular weight of 30,000 to 200,000.

6. The resin article according to claim 1 , wherein the second resin has a molecular weight distribution of 1.9 to 2.2.

7. A resin article, comprising: a first resin layer including a first resin; and a second resin layer including a second resin having a molecular weight distribution of 1 to 2.5 formed on the first resin layer,
wherein a component of the first resin layer is detected on the top surface of the second resin layer by infrared spectrometer, wherein the resin article has a layer-separated structure, wherein the first resin includes at least one selected from the group consisting of a styrene-based resin, a polyolefin-based resin, a thermoplastic elastomer, a polyoxyalkylene-based resin, a polyester-based resin, a polyvinyl chloride-based resin, a polycarbonate-based resin, a polyphenylene sulfide-based resin, a vinyl alcohol-based resin, an acrylate-based resin, engineering plastics and a copolymer thereof, wherein the second resin includes at least one selected from the group consisting of a high surface hardness resin, an anti-wear resin, an anti-contamination resin, an anti-fingerprint resin, a colored resin, a pearl resin, a high-gloss resin, a non-gloss resin and a barrier resin, wherein the first resin layer and the second resin layer has a difference in surface energy at 25° C. of 0.1 to 35 mN/m, and-wherein the first resin layer and the second resin layer have a difference in solubility parameter at 25° C. of 0.001 to 10.0 (J/cm 3 ) 1/2 .

Assignees

• Lg Chemical Ltd

Inventors

• Yoo Houng Sik
• Kim Hak Shin
• Ryu Jin Young
• Shin Chong Kyu
• Hong Young Jun
• Kim Jeong Min
• Choi Eun Joo

Classifications

• B32B25/14

  comprising {synthetic rubber copolymers (B32B25/18 and B32B25/20 take precedence)} · CPC title

• B32B2307/584

  Scratch resistance · CPC title

• Y10T428/2495

  Thickness [relative or absolute] · CPC title

• B32B27/304

  comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF · CPC title

• B32B27/38

  comprising epoxy resins · CPC title